1) The following questions concern the reaction mechanism for the overall reaction of: A + B → P A + B C D - C K_1 D P Step-1 Step-2 Step-3 Step-1 is reversible. The second order rate constant for A + B→C is k₁. The first rate constant for the reverse process C → A + B is k-1 Step-2 is irreversible. The first order rate constant for C→D is k₂. Step-3 is irreversible and the first rate constant for D→P is k3. A) Using BOTH the steady state approximation for D AND the approximation that Step-1 is a fast pre-equilibrium (also called "fast to equilibrium" in some books) d[P] Derive an expression for the rate of product of product, dt appropriate rate constants. Your answer should not include [D] or [C] Hint the steady state approximation for [D] means = 0 d[D] dt in terms of [A], [B] and the 9

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter13: Chemical Kinetics
Section: Chapter Questions
Problem 13.50QE
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B) What are the units of k₁, k-1, and k3? Answer the question by filling out the table
Rate constant
units
k₁
K-1
K3
Transcribed Image Text:B) What are the units of k₁, k-1, and k3? Answer the question by filling out the table Rate constant units k₁ K-1 K3
1) The following questions concern the reaction mechanism for the overall reaction of: A + B → P
A + B
C
D
- C Step-1
K_1
D
P
Step-2
Step-3
Step-1 is reversible. The second order rate constant for A + B→C is
k₁. The first rate constant for the reverse process C → A + B is k-1
Step-2 is irreversible. The first order rate constant for C→D is k2.
Step-3 is irreversible and the first rate constant for D→P is k3.
A) Using BOTH the steady state approximation for D AND the approximation that Step-1 is a fast
pre-equilibrium (also called "fast to equilibrium" in some books)
d[P]
Derive an expression for the rate of product of product,
dt
appropriate rate constants. Your answer should not include [D] or [C]
Hint the steady state approximation for [D] means = 0
d[D]
dt
, in terms of [A], [B] and the
Transcribed Image Text:1) The following questions concern the reaction mechanism for the overall reaction of: A + B → P A + B C D - C Step-1 K_1 D P Step-2 Step-3 Step-1 is reversible. The second order rate constant for A + B→C is k₁. The first rate constant for the reverse process C → A + B is k-1 Step-2 is irreversible. The first order rate constant for C→D is k2. Step-3 is irreversible and the first rate constant for D→P is k3. A) Using BOTH the steady state approximation for D AND the approximation that Step-1 is a fast pre-equilibrium (also called "fast to equilibrium" in some books) d[P] Derive an expression for the rate of product of product, dt appropriate rate constants. Your answer should not include [D] or [C] Hint the steady state approximation for [D] means = 0 d[D] dt , in terms of [A], [B] and the
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